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The following four items appear when you set Launch CSM to [Enabled].
Boot Device Control [UEFI and Legacy OPROM]
Allows you to select the type of devices that you want to boot up. Configuration options:
[UEFI and Legacy OPROM] [Legacy OPROM only] [UEFI only]
Boot from Network Devices [Legacy Only]
Allows you to select the type of network devices that you want to launch. Configuration
options: [Legacy Only] [UEFI driver first] [Ignore]
Boot from Storage Devices [Legacy Only]
Allows you to select the type of storage devices that you want to launch. Configuration
options: [Legacy nly] [UEFI driver first] [Ignore]
Boot from PCI-E Expansion Devices [Legacy Only]
Allows you to select the type of PCI‑E expansion devices that you want to launch.
Configuration options: [Legacy Only] [UEFI driver first]
2.8.9
Secure Boot
Allows you to configure the Windows
the system from unauthorized access and malwares during POST.
OS Type [Windows UEFI mode]
Allows you to select your installed operating system.
[Windows UEFI mode]
[Other OS]
Key Management
This allows you to manage the Secure Boot keys.
Install Default Secure Boot keys
This item allows you to immediately load the default Security Boot keys, Platform key
(PK), Key‑exchange Key (KEK), Signature database (db), and Revoked Signatures
(dbx). When the default Secure boot keys are loaded, all the Secure Boot keys' state
will change from Unloaded mode to loaded mode.
Clear Secure Boot keys
This item appears only when you load the default Secure Boot keys. This item allows
you to clear all the previously applied Secure Boot keys.
Save Secure Boot Keys
This item allows you to save all the Secure Boot keys to a USB storage device.
ASUS H170M-PLUS
Secure Boot settings and manage its keys to protect
®
T his item allows you to select your installed operating system.
Execute the Microsoft
option when booting on Windows
Secure Boot compliant OS.
G et the optimized function when booting on Windows
mode. Microsoft
Secure Boot only supports Windows
®
mode.
Secure Boot check. Only select this
®
UEFI mode or other Microsoft
®
®
non‑UEFI
®
UEFI
®
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